How do I exit fullscreen?

Press the Escape key, or tap the Fullscreen button again.

Does fullscreen work on iPhone?

Safari on iPhone limits fullscreen for web pages. The timer still fills the screen width and stays fully usable.

Yes. Move the browser window to the projector display and then enter fullscreen.

Press the fullscreen button for oversized digits that stay readable from the back of a room.

Fullscreen TimerReady

00:15:00

HoursMinutesSeconds

Volume

Presets

Fullscreen mode hides the rest of the page so the countdown fills the display. Press Escape or the fullscreen button again to exit.

It works well on a projector, a classroom TV or a tablet propped on a desk. The high-contrast digits stay legible in both day and night appearance.

How do I exit fullscreen?: Press the Escape key, or tap the Fullscreen button again.
Does fullscreen work on iPhone?: Safari on iPhone limits fullscreen for web pages. The timer still fills the screen width and stays fully usable.
Can I use it on a projector?: Yes. Move the browser window to the projector display and then enter fullscreen.